Reactions of N2(A3Σ)

Golde, Michael F.

doi:10.1002/kin.550200109

Cited by 81 publications

(62 citation statements)

References 71 publications

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“…Ethane can be dissociated, in the same way as methane, to produce ethyl radicals, which in turn give ethane through reaction (14), as explained further.…”

Section: Ethanementioning

confidence: 97%

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A kinetic study of methane conversion by a dinitrogen microwave plasma

Oumghar

Legrand

Diamy

et al. 1994

Plasma Chem Plasma Process

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“…Ethane can be dissociated, in the same way as methane, to produce ethyl radicals, which in turn give ethane through reaction (14), as explained further.…”

Section: Ethanementioning

confidence: 97%

“…Indeed, Mackie and Doolan <33) have estimated k9(k9<<k20) and Braun et al ~341 have concluded that reaction (9) is negligible in a study of CH2 reactions. Thus, the main reactions in ethylene formation are reactions (10)- (14).…”

Section: Ethylenementioning

confidence: 99%

A kinetic study of methane conversion by a dinitrogen microwave plasma

Oumghar

Legrand

Diamy

et al. 1994

Plasma Chem Plasma Process

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“…C 3 H 8 * denotes an electronically excited state (or a group of states) with an energy lower than 6.17 eV (energy of the v=0 level of A 3 Σ + u ) or slightly above. It should be a triplet [45][46][47][48] and it should also be created by electron collisions included in the group of optically forbidden transitions (maximum excitation cross section at 6.1 eV [15]). We suppose that it dissociates in times short as compared to those required for internal vibrational energy redistribution, so that the propane molecule is effectively lost through reactions (3) and (4).…”

Section: Role Of Metastable States Of Nitrogen In the Removal Of Propanementioning

confidence: 99%

Propane dissociation in a non-thermal high-pressure nitrogen plasma

Moreau¹,

Pasquiers²,

Blin-Simiand³

et al. 2010

J. Phys. D: Appl. Phys.

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Abstract. The removal and the conversion processes of propane in N 2 /C 3 H 8 mixtures (concentration of hydrocarbon molecules up to 5500 ppm) energised by a photo-triggered discharge (homogeneous plasma) are studied at 460 mbar total pressure, both experimentally and theoretically. A self-consistent 0D discharge and kinetic model is used to interpret chromatographic measurements of propane and some by-products concentrations (hydrogen and hydrocarbons with 2 or 3 carbon atoms). It is suggested, from the comparison between measurements and model predictions, that quenching processes of nitrogen metastable states by C 3 H 8 lead to the dissociation of the hydrocarbon molecule, and are the most important processes for the removal of propane. Such a result is obtained using the quenching coefficient value previously determined by Callear and Wood for the A 3 Σ + u state [19], whereas the coefficient for collisions of the singlet states with C 3 H 8 is estimated to be 3.0x10 -10 cm 3 s -1 in order to explain the measured propane disappearance in the N 2 / C 3 H 8 mixture excited by the photo-triggered discharge. The hydrogen molecule is the measured most populated by-product and, also from the comparison between experimental results and model predictions, the most probable dissociation products of propane appear to be H 2 and C 3 H 6 . The propene molecule is also efficiently dissociated by quenching processes of N 2 states, and probably leads to the production of hydrogen atoms and methyl radicals with equivalent probabilities. The kinetic model predicts that the carbon atom is distributed amongst numerous molecules, including HCN, CH 4 , C 2 H 2 , C 2 H 4 , C 2 H 6 , C 3 H 6 .

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“…1,2 Since the electronic energy of N 2 ͑A͒, 601 kJ mol −1 , is large enough to break many chemical bonds, it has been proposed that radical species are produced in the reactions of N 2 ͑A͒ with unsaturated hydrocarbons. 1,2 Since the electronic energy of N 2 ͑A͒, 601 kJ mol −1 , is large enough to break many chemical bonds, it has been proposed that radical species are produced in the reactions of N 2 ͑A͒ with unsaturated hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Production yields of H(D) atoms in the reactions of N2(AΣu+3) with C2H2, C2H4, and their deuterated variants

Umemoto

2007

The Journal of Chemical Physics

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The production yields of H(D) atoms in the reactions of N(2)(A (3)Sigma(u) (+)) with C(2)H(2), C(2)H(4), and their deuterated variants were determined. N(2)(A (3)Sigma(u) (+)) was produced by excitation transfer between Xe(6s[32](1)) and ground-state N(2) followed by collisional relaxation. Xe(6s[32](1)) was produced by two-photon laser excitation of Xe(6p[12](0)) followed by concomitant amplified spontaneous emission. H(D) atoms were detected by using vacuum-ultraviolet laser-induced fluorescence (LIF). The H(D)-atom yields were evaluated from the LIF intensities and the overall rate constants for the quenching, which were determined from the temporal profiles of the NO tracer emission. The absolute yields were evaluated by assuming that the yield for NH(3)(ND(3)) is 0.9. Although no HD isotope effects were observed in the overall rate constants, there were isotope effects in the H(D)-atom yields. The H-atom yields for C(2)H(2) and C(2)H(4) were 0.52 and 0.30, respectively, while the D-atom yields for C(2)D(2) and C(2)D(4) were 0.33 and 0.13, respectively. The presence of isotope effects in yields suggests that H(2)(D(2)) molecular elimination processes are competing and that molecular elimination is more dominant in deuterated species than in hydrides.

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Reactions of N₂(A³Σ)

Cited by 81 publications

References 71 publications

A kinetic study of methane conversion by a dinitrogen microwave plasma

A kinetic study of methane conversion by a dinitrogen microwave plasma

Propane dissociation in a non-thermal high-pressure nitrogen plasma

Production yields of H(D) atoms in the reactions of N2(AΣu+3) with C2H2, C2H4, and their deuterated variants

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